The definition of chivalrous is a man who is attentive and courteous to women, like a knight in shining armor.(adjective)
A man who opens the door for a woman and provides any help she needs is an example of a man who is chivalrous.
See chivalrous in Webster's New World College Dictionary
Origin: ME chevalrous < OFr chevalereus: see chivalry
See chivalrous in American Heritage Dictionary 4
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